How to Replace the Battery in a 2008 Mercury Grand Marquis Key Fob

If your Grand Marquis key isn't unlock doors correct, the cell battery surely must to be changed. In this case, we are going to tell you how to open Mercury remote key fob and replace a dead battery DIY. If you decide to do it at home near Grand Marquis, follow our guide, but first make sure you have tools and materials required.
What size battery does 2008 Mercury Grand Marquis key fob required
Replacing battery in keyless entry remote require 1xCR2032 battery and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.- flat head screwdriver
- 1xCR2032 battery
Simple steps to replace the battery in your car's key fob
Inside of your key fob installed small button cell battery. Accurately try to open your remote key fob with pry tools. Remove one CR2032 battery with flat head screwdriver.
Now it's time to install new battery in keyless entry fob's case. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you connect battery wrong way.
After the new battery installed, check remote key fob functionality by pressing buttons. If all functions works, assemble your fob’s case in reverse order.
The last thing to do is put your cover back on fob. Carefully try to assemble the pieces together by hands from top to bottom. Check your fob body for gaps. If it is not tightly closed try to repeat last step.
Key Fob Battery Replacement 2008 Mercury Grand Marquis Video
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